Google

基类: BasePydanticVectorStore

Google 生成式 AI 向量存储。

当前，它在服务器端计算嵌入向量。

google_vector_store = GoogleVectorStore.from_corpus( corpus_id="my-corpus-id", include_metadata=True, metadata_keys=['file_name', 'creation_date'] ) index = VectorStoreIndex.from_vector_store( vector_store=google_vector_store )

示例

属性

名称

类型	描述	str
from_corpus	此向量存储实例将读取和写入的语料库 ID。	include_metadata
bool	指示是否在查询结果中包含自定义元数据。默认为 False。	metadata_keys
可选[列表[字符串]]	指定如果在 include_metadata 设置为 True 时在查询结果中包含哪些元数据键。如果为 None，则包含所有元数据键。默认为 None。	Source code in llama-index-integrations/vector_stores/llama-index-vector-stores-google/llama_index/vector_stores/google/base.py

corpus_id 类属性 实例属性

class GoogleVectorStore(BasePydanticVectorStore):
    """
    Google GenerativeAI Vector Store.

    Currently, it computes the embedding vectors on the server side.

    Examples:
        google_vector_store = GoogleVectorStore.from_corpus(
            corpus_id="my-corpus-id",
            include_metadata=True,
            metadata_keys=['file_name', 'creation_date']
        )
        index = VectorStoreIndex.from_vector_store(
            vector_store=google_vector_store
        )

    Attributes:
        corpus_id: The corpus ID that this vector store instance will read and
            write to.
        include_metadata (bool): Indicates whether to include custom metadata in the query
            results. Defaults to False.
        metadata_keys (Optional[List[str]]): Specifies which metadata keys to include in the
            query results if include_metadata is set to True. If None, all metadata keys
            are included. Defaults to None.

    """

    # Semantic Retriever stores the document node's text as string and embeds
    # the vectors on the server automatically.
    stores_text: bool = True
    is_embedding_query: bool = False

    # This is not the Google's corpus name but an ID generated in the LlamaIndex
    # world.
    corpus_id: str = Field(frozen=True)
    """Corpus ID that this instance of the vector store is using."""

    # Configuration options for handling metadata in query results
    include_metadata: bool = False
    metadata_keys: Optional[List[str]] = None

    _client: Any = PrivateAttr()

    def __init__(self, *, client: Any, **kwargs: Any):
        """
        Raw constructor.

        Use the class method `from_corpus` or `create_corpus` instead.

        Args:
            client: The low-level retriever class from google.ai.generativelanguage.

        """
        try:
            import google.ai.generativelanguage as genai
        except ImportError:
            raise ImportError(_import_err_msg)

        super().__init__(**kwargs)

        assert isinstance(client, genai.RetrieverServiceClient)
        self._client = client

    @classmethod
    def from_corpus(
        cls,
        *,
        corpus_id: str,
        include_metadata: bool = False,
        metadata_keys: Optional[List[str]] = None,
    ) -> "GoogleVectorStore":
        """
        Create an instance that points to an existing corpus.

        Args:
            corpus_id (str): ID of an existing corpus on Google's server.
            include_metadata (bool, optional): Specifies whether to include custom metadata in the
                query results. Defaults to False, meaning metadata will not be included.
            metadata_keys (Optional[List[str]], optional): Specifies which metadata keys to include
                in the query results if include_metadata is set to True. If None, all metadata keys
                are included. Defaults to None.

        Returns:
            An instance of the vector store that points to the specified corpus.

        Raises:
            NoSuchCorpusException if no such corpus is found.

        """
        try:
            import llama_index.vector_stores.google.genai_extension as genaix
        except ImportError:
            raise ImportError(_import_err_msg)

        _logger.debug(f"\n\nGoogleVectorStore.from_corpus(corpus_id={corpus_id})")
        client = genaix.build_semantic_retriever()
        if genaix.get_corpus(corpus_id=corpus_id, client=client) is None:
            raise NoSuchCorpusException(corpus_id=corpus_id)

        return cls(
            corpus_id=corpus_id,
            client=client,
            include_metadata=include_metadata,
            metadata_keys=metadata_keys,
        )

    @classmethod
    def create_corpus(
        cls, *, corpus_id: Optional[str] = None, display_name: Optional[str] = None
    ) -> "GoogleVectorStore":
        """
        Create an instance that points to a newly created corpus.

        Examples:
            store = GoogleVectorStore.create_corpus()
            print(f"Created corpus with ID: {store.corpus_id})

            store = GoogleVectorStore.create_corpus(
                display_name="My first corpus"
            )

            store = GoogleVectorStore.create_corpus(
                corpus_id="my-corpus-1",
                display_name="My first corpus"
            )

        Args:
            corpus_id: ID of the new corpus to be created. If not provided,
                Google server will provide one for you.
            display_name: Title of the corpus. If not provided, Google server
                will provide one for you.

        Returns:
            An instance of the vector store that points to the specified corpus.

        Raises:
            An exception if the corpus already exists or the user hits the
            quota limit.

        """
        try:
            import llama_index.vector_stores.google.genai_extension as genaix
        except ImportError:
            raise ImportError(_import_err_msg)

        _logger.debug(
            f"\n\nGoogleVectorStore.create_corpus(new_corpus_id={corpus_id}, new_display_name={display_name})"
        )

        client = genaix.build_semantic_retriever()
        new_corpus_id = corpus_id or str(uuid.uuid4())
        new_corpus = genaix.create_corpus(
            corpus_id=new_corpus_id, display_name=display_name, client=client
        )
        name = genaix.EntityName.from_str(new_corpus.name)
        return cls(corpus_id=name.corpus_id, client=client)

    @classmethod
    def class_name(cls) -> str:
        return "GoogleVectorStore"

    @property
    def client(self) -> Any:
        return self._client

    def add(self, nodes: List[BaseNode], **add_kwargs: Any) -> List[str]:
        """
        Add nodes with embedding to vector store.

        If a node has a source node, the source node's ID will be used to create
        a document. Otherwise, a default document for that corpus will be used
        to house the node.

        Furthermore, if the source node has a metadata field "file_name", it
        will be used as the title of the document. If the source node has no
        such field, Google server will assign a title to the document.

        Example:
            store = GoogleVectorStore.from_corpus(corpus_id="123")
            store.add([
                TextNode(
                    text="Hello, my darling",
                    relationships={
                        NodeRelationship.SOURCE: RelatedNodeInfo(
                            node_id="doc-456",
                            metadata={"file_name": "Title for doc-456"},
                        )
                    },
                ),
                TextNode(
                    text="Goodbye, my baby",
                    relationships={
                        NodeRelationship.SOURCE: RelatedNodeInfo(
                            node_id="doc-456",
                            metadata={"file_name": "Title for doc-456"},
                        )
                    },
                ),
            ])

        The above code will create one document with ID `doc-456` and title
        `Title for doc-456`. This document will house both nodes.

        """
        try:
            import llama_index.vector_stores.google.genai_extension as genaix

            import google.ai.generativelanguage as genai
        except ImportError:
            raise ImportError(_import_err_msg)

        _logger.debug(f"\n\nGoogleVectorStore.add(nodes={nodes})")

        client = cast(genai.RetrieverServiceClient, self.client)

        created_node_ids: List[str] = []
        for nodeGroup in _group_nodes_by_source(nodes):
            source = nodeGroup.source_node
            document_id = source.node_id
            document = genaix.get_document(
                corpus_id=self.corpus_id, document_id=document_id, client=client
            )

            if not document:
                genaix.create_document(
                    corpus_id=self.corpus_id,
                    display_name=source.metadata.get("file_name", None),
                    document_id=document_id,
                    metadata=source.metadata,
                    client=client,
                )

            created_chunks = genaix.batch_create_chunk(
                corpus_id=self.corpus_id,
                document_id=document_id,
                texts=[node.get_content() for node in nodeGroup.nodes],
                metadatas=[node.metadata for node in nodeGroup.nodes],
                client=client,
            )
            created_node_ids.extend([chunk.name for chunk in created_chunks])

        return created_node_ids

    def delete(self, ref_doc_id: str, **delete_kwargs: Any) -> None:
        """
        Delete nodes by ref_doc_id.

        Both the underlying nodes and the document will be deleted from Google
        server.

        Args:
            ref_doc_id: The document ID to be deleted.

        """
        try:
            import llama_index.vector_stores.google.genai_extension as genaix

            import google.ai.generativelanguage as genai
        except ImportError:
            raise ImportError(_import_err_msg)

        _logger.debug(f"\n\nGoogleVectorStore.delete(ref_doc_id={ref_doc_id})")

        client = cast(genai.RetrieverServiceClient, self.client)
        genaix.delete_document(
            corpus_id=self.corpus_id, document_id=ref_doc_id, client=client
        )

    def query(self, query: VectorStoreQuery, **kwargs: Any) -> VectorStoreQueryResult:
        """
        Query vector store.

        Example:
            store = GoogleVectorStore.from_corpus(corpus_id="123")
            store.query(
                query=VectorStoreQuery(
                    query_str="What is the meaning of life?",
                    # Only nodes with this author.
                    filters=MetadataFilters(
                        filters=[
                            ExactMatchFilter(
                                key="author",
                                value="Arthur Schopenhauer",
                            )
                        ]
                    ),
                    # Only from these docs. If not provided,
                    # the entire corpus is searched.
                    doc_ids=["doc-456"],
                    similarity_top_k=3,
                )
            )

        Args:
            query: See `llama_index.core.vector_stores.types.VectorStoreQuery`.

        """
        try:
            import llama_index.vector_stores.google.genai_extension as genaix

            import google.ai.generativelanguage as genai
        except ImportError:
            raise ImportError(_import_err_msg)

        _logger.debug(f"\n\nGoogleVectorStore.query(query={query})")

        query_str = query.query_str
        if query_str is None:
            raise ValueError("VectorStoreQuery.query_str should not be None.")

        client = cast(genai.RetrieverServiceClient, self.client)

        relevant_chunks: List[genai.RelevantChunk] = []
        if query.doc_ids is None:
            # The chunks from query_corpus should be sorted in reverse order by
            # relevant score.
            relevant_chunks = genaix.query_corpus(
                corpus_id=self.corpus_id,
                query=query_str,
                filter=_convert_filter(query.filters),
                k=query.similarity_top_k,
                client=client,
            )
        else:
            for doc_id in query.doc_ids:
                relevant_chunks.extend(
                    genaix.query_document(
                        corpus_id=self.corpus_id,
                        document_id=doc_id,
                        query=query_str,
                        filter=_convert_filter(query.filters),
                        k=query.similarity_top_k,
                        client=client,
                    )
                )
            # Make sure the chunks are reversed sorted according to relevant
            # scores even across multiple documents.
            relevant_chunks.sort(key=lambda c: c.chunk_relevance_score, reverse=True)

        nodes = []
        include_metadata = self.include_metadata
        metadata_keys = self.metadata_keys
        for chunk in relevant_chunks:
            metadata = {}
            if include_metadata:
                for custom_metadata in chunk.chunk.custom_metadata:
                    # Use getattr to safely extract values
                    value = getattr(custom_metadata, "string_value", None)
                    if (
                        value is None
                    ):  # If string_value is not set, check for numeric_value
                        value = getattr(custom_metadata, "numeric_value", None)
                    # Add to the metadata dictionary only those keys that are present in metadata_keys
                    if value is not None and (
                        metadata_keys is None or custom_metadata.key in metadata_keys
                    ):
                        metadata[custom_metadata.key] = value

            text_node = TextNode(
                text=chunk.chunk.data.string_value,
                id=_extract_chunk_id(chunk.chunk.name),
                metadata=metadata,  # Adding metadata to the node
            )
            nodes.append(text_node)

        return VectorStoreQueryResult(
            nodes=nodes,
            ids=[_extract_chunk_id(chunk.chunk.name) for chunk in relevant_chunks],
            similarities=[chunk.chunk_relevance_score for chunk in relevant_chunks],
        )

此向量存储实例正在使用的语料库 ID。

corpus_id: str = Field(frozen=True)

from_corpus 类方法

创建指向现有语料库的实例。

from_corpus(*, corpus_id: str, include_metadata: bool = False, metadata_keys: Optional[List[str]] = None) -> GoogleVectorStore

参数

默认值

类型	描述	str	Google 服务器上现有语料库的 ID。
from_corpus	此向量存储实例将读取和写入的语料库 ID。	必需	指定是否在查询结果中包含自定义元数据。默认为 False，表示不包含元数据。
bool	指示是否在查询结果中包含自定义元数据。默认为 False。	False	返回值
可选[列表[字符串]]	指定如果在 include_metadata 设置为 True 时在查询结果中包含哪些元数据键。如果为 None，则包含所有元数据键。默认为 None。	Source code in llama-index-integrations/vector_stores/llama-index-vector-stores-google/llama_index/vector_stores/google/base.py	无

指向指定语料库的向量存储实例。

描述	str
corpus_id	create_corpus 类方法

corpus_id 类属性 实例属性

@classmethod
def from_corpus(
    cls,
    *,
    corpus_id: str,
    include_metadata: bool = False,
    metadata_keys: Optional[List[str]] = None,
) -> "GoogleVectorStore":
    """
    Create an instance that points to an existing corpus.

    Args:
        corpus_id (str): ID of an existing corpus on Google's server.
        include_metadata (bool, optional): Specifies whether to include custom metadata in the
            query results. Defaults to False, meaning metadata will not be included.
        metadata_keys (Optional[List[str]], optional): Specifies which metadata keys to include
            in the query results if include_metadata is set to True. If None, all metadata keys
            are included. Defaults to None.

    Returns:
        An instance of the vector store that points to the specified corpus.

    Raises:
        NoSuchCorpusException if no such corpus is found.

    """
    try:
        import llama_index.vector_stores.google.genai_extension as genaix
    except ImportError:
        raise ImportError(_import_err_msg)

    _logger.debug(f"\n\nGoogleVectorStore.from_corpus(corpus_id={corpus_id})")
    client = genaix.build_semantic_retriever()
    if genaix.get_corpus(corpus_id=corpus_id, client=client) is None:
        raise NoSuchCorpusException(corpus_id=corpus_id)

    return cls(
        corpus_id=corpus_id,
        client=client,
        include_metadata=include_metadata,
        metadata_keys=metadata_keys,
    )

创建指向新创建语料库的实例。

create_corpus(*, corpus_id: Optional[str] = None, display_name: Optional[str] = None) -> GoogleVectorStore

store = GoogleVectorStore.create_corpus() print(f"Created corpus with ID: {store.corpus_id})

示例

store = GoogleVectorStore.create_corpus( display_name="My first corpus" )

store = GoogleVectorStore.create_corpus( corpus_id="my-corpus-1", display_name="My first corpus" )

可选[字符串]]

默认值

类型	描述	str	Google 服务器上现有语料库的 ID。
from_corpus	要创建的新语料库的 ID。如果未提供，Google 服务器将为您分配一个。	display_name	无
语料库的标题。如果未提供，Google 服务器将为您分配一个。	要创建的新语料库的 ID。如果未提供，Google 服务器将为您分配一个。	add	无

指向指定语料库的向量存储实例。

描述	str
corpus_id	create_corpus 类方法

corpus_id 类属性 实例属性

@classmethod
def create_corpus(
    cls, *, corpus_id: Optional[str] = None, display_name: Optional[str] = None
) -> "GoogleVectorStore":
    """
    Create an instance that points to a newly created corpus.

    Examples:
        store = GoogleVectorStore.create_corpus()
        print(f"Created corpus with ID: {store.corpus_id})

        store = GoogleVectorStore.create_corpus(
            display_name="My first corpus"
        )

        store = GoogleVectorStore.create_corpus(
            corpus_id="my-corpus-1",
            display_name="My first corpus"
        )

    Args:
        corpus_id: ID of the new corpus to be created. If not provided,
            Google server will provide one for you.
        display_name: Title of the corpus. If not provided, Google server
            will provide one for you.

    Returns:
        An instance of the vector store that points to the specified corpus.

    Raises:
        An exception if the corpus already exists or the user hits the
        quota limit.

    """
    try:
        import llama_index.vector_stores.google.genai_extension as genaix
    except ImportError:
        raise ImportError(_import_err_msg)

    _logger.debug(
        f"\n\nGoogleVectorStore.create_corpus(new_corpus_id={corpus_id}, new_display_name={display_name})"
    )

    client = genaix.build_semantic_retriever()
    new_corpus_id = corpus_id or str(uuid.uuid4())
    new_corpus = genaix.create_corpus(
        corpus_id=new_corpus_id, display_name=display_name, client=client
    )
    name = genaix.EntityName.from_str(new_corpus.name)
    return cls(corpus_id=name.corpus_id, client=client)

将带有嵌入的节点添加到向量存储中。

add(nodes: List[BaseNode], **add_kwargs: Any) -> List[str]

如果节点有源节点，将使用源节点的 ID 创建文档。否则，将使用该语料库的默认文档来容纳该节点。

此外，如果源节点有一个元数据字段 "file_name"，它将用作文档的标题。如果源节点没有此字段，Google 服务器将为文档分配标题。

示例

store = GoogleVectorStore.from_corpus(corpus_id="123") store.add([ TextNode( text="Hello, my darling", relationships={ NodeRelationship.SOURCE: RelatedNodeInfo( node_id="doc-456", metadata={"file_name": "Title for doc-456"}, ) }, ), TextNode( text="Goodbye, my baby", relationships={ NodeRelationship.SOURCE: RelatedNodeInfo( node_id="doc-456", metadata={"file_name": "Title for doc-456"}, ) }, ), ])

上述代码将创建一个 ID 为 doc-456 且标题为 Title for doc-456 的文档。此文档将容纳这两个节点。

delete

corpus_id 类属性 实例属性

def add(self, nodes: List[BaseNode], **add_kwargs: Any) -> List[str]:
    """
    Add nodes with embedding to vector store.

    If a node has a source node, the source node's ID will be used to create
    a document. Otherwise, a default document for that corpus will be used
    to house the node.

    Furthermore, if the source node has a metadata field "file_name", it
    will be used as the title of the document. If the source node has no
    such field, Google server will assign a title to the document.

    Example:
        store = GoogleVectorStore.from_corpus(corpus_id="123")
        store.add([
            TextNode(
                text="Hello, my darling",
                relationships={
                    NodeRelationship.SOURCE: RelatedNodeInfo(
                        node_id="doc-456",
                        metadata={"file_name": "Title for doc-456"},
                    )
                },
            ),
            TextNode(
                text="Goodbye, my baby",
                relationships={
                    NodeRelationship.SOURCE: RelatedNodeInfo(
                        node_id="doc-456",
                        metadata={"file_name": "Title for doc-456"},
                    )
                },
            ),
        ])

    The above code will create one document with ID `doc-456` and title
    `Title for doc-456`. This document will house both nodes.

    """
    try:
        import llama_index.vector_stores.google.genai_extension as genaix

        import google.ai.generativelanguage as genai
    except ImportError:
        raise ImportError(_import_err_msg)

    _logger.debug(f"\n\nGoogleVectorStore.add(nodes={nodes})")

    client = cast(genai.RetrieverServiceClient, self.client)

    created_node_ids: List[str] = []
    for nodeGroup in _group_nodes_by_source(nodes):
        source = nodeGroup.source_node
        document_id = source.node_id
        document = genaix.get_document(
            corpus_id=self.corpus_id, document_id=document_id, client=client
        )

        if not document:
            genaix.create_document(
                corpus_id=self.corpus_id,
                display_name=source.metadata.get("file_name", None),
                document_id=document_id,
                metadata=source.metadata,
                client=client,
            )

        created_chunks = genaix.batch_create_chunk(
            corpus_id=self.corpus_id,
            document_id=document_id,
            texts=[node.get_content() for node in nodeGroup.nodes],
            metadatas=[node.metadata for node in nodeGroup.nodes],
            client=client,
        )
        created_node_ids.extend([chunk.name for chunk in created_chunks])

    return created_node_ids

按 ref_doc_id 删除节点。

delete(ref_doc_id: str, **delete_kwargs: Any) -> None

底层节点和文档都将从 Google 服务器中删除。

ref_doc_id

默认值

类型	描述	str	Google 服务器上现有语料库的 ID。
要删除的文档 ID。	此向量存储实例将读取和写入的语料库 ID。	query	指定是否在查询结果中包含自定义元数据。默认为 False，表示不包含元数据。

corpus_id 类属性 实例属性

def delete(self, ref_doc_id: str, **delete_kwargs: Any) -> None:
    """
    Delete nodes by ref_doc_id.

    Both the underlying nodes and the document will be deleted from Google
    server.

    Args:
        ref_doc_id: The document ID to be deleted.

    """
    try:
        import llama_index.vector_stores.google.genai_extension as genaix

        import google.ai.generativelanguage as genai
    except ImportError:
        raise ImportError(_import_err_msg)

    _logger.debug(f"\n\nGoogleVectorStore.delete(ref_doc_id={ref_doc_id})")

    client = cast(genai.RetrieverServiceClient, self.client)
    genaix.delete_document(
        corpus_id=self.corpus_id, document_id=ref_doc_id, client=client
    )

查询向量存储。

query(query: VectorStoreQuery, **kwargs: Any) -> VectorStoreQueryResult

store = GoogleVectorStore.from_corpus(corpus_id="123") store.query( query=VectorStoreQuery( query_str="What is the meaning of life?", # Only nodes with this author. filters=MetadataFilters( filters=[ ExactMatchFilter( key="author", value="Arthur Schopenhauer", ) ] ), # Only from these docs. If not provided, # the entire corpus is searched. doc_ids=["doc-456"], similarity_top_k=3, ) )

store = GoogleVectorStore.from_corpus(corpus_id="123") store.add([ TextNode( text="Hello, my darling", relationships={ NodeRelationship.SOURCE: RelatedNodeInfo( node_id="doc-456", metadata={"file_name": "Title for doc-456"}, ) }, ), TextNode( text="Goodbye, my baby", relationships={ NodeRelationship.SOURCE: RelatedNodeInfo( node_id="doc-456", metadata={"file_name": "Title for doc-456"}, ) }, ), ])

VectorStoreQuery

默认值

类型	描述	str	Google 服务器上现有语料库的 ID。
Kdbai	参阅 llama_index.core.vector_stores.types.VectorStoreQuery。	回到顶部	指定是否在查询结果中包含自定义元数据。默认为 False，表示不包含元数据。

corpus_id 类属性 实例属性

def query(self, query: VectorStoreQuery, **kwargs: Any) -> VectorStoreQueryResult:
    """
    Query vector store.

    Example:
        store = GoogleVectorStore.from_corpus(corpus_id="123")
        store.query(
            query=VectorStoreQuery(
                query_str="What is the meaning of life?",
                # Only nodes with this author.
                filters=MetadataFilters(
                    filters=[
                        ExactMatchFilter(
                            key="author",
                            value="Arthur Schopenhauer",
                        )
                    ]
                ),
                # Only from these docs. If not provided,
                # the entire corpus is searched.
                doc_ids=["doc-456"],
                similarity_top_k=3,
            )
        )

    Args:
        query: See `llama_index.core.vector_stores.types.VectorStoreQuery`.

    """
    try:
        import llama_index.vector_stores.google.genai_extension as genaix

        import google.ai.generativelanguage as genai
    except ImportError:
        raise ImportError(_import_err_msg)

    _logger.debug(f"\n\nGoogleVectorStore.query(query={query})")

    query_str = query.query_str
    if query_str is None:
        raise ValueError("VectorStoreQuery.query_str should not be None.")

    client = cast(genai.RetrieverServiceClient, self.client)

    relevant_chunks: List[genai.RelevantChunk] = []
    if query.doc_ids is None:
        # The chunks from query_corpus should be sorted in reverse order by
        # relevant score.
        relevant_chunks = genaix.query_corpus(
            corpus_id=self.corpus_id,
            query=query_str,
            filter=_convert_filter(query.filters),
            k=query.similarity_top_k,
            client=client,
        )
    else:
        for doc_id in query.doc_ids:
            relevant_chunks.extend(
                genaix.query_document(
                    corpus_id=self.corpus_id,
                    document_id=doc_id,
                    query=query_str,
                    filter=_convert_filter(query.filters),
                    k=query.similarity_top_k,
                    client=client,
                )
            )
        # Make sure the chunks are reversed sorted according to relevant
        # scores even across multiple documents.
        relevant_chunks.sort(key=lambda c: c.chunk_relevance_score, reverse=True)

    nodes = []
    include_metadata = self.include_metadata
    metadata_keys = self.metadata_keys
    for chunk in relevant_chunks:
        metadata = {}
        if include_metadata:
            for custom_metadata in chunk.chunk.custom_metadata:
                # Use getattr to safely extract values
                value = getattr(custom_metadata, "string_value", None)
                if (
                    value is None
                ):  # If string_value is not set, check for numeric_value
                    value = getattr(custom_metadata, "numeric_value", None)
                # Add to the metadata dictionary only those keys that are present in metadata_keys
                if value is not None and (
                    metadata_keys is None or custom_metadata.key in metadata_keys
                ):
                    metadata[custom_metadata.key] = value

        text_node = TextNode(
            text=chunk.chunk.data.string_value,
            id=_extract_chunk_id(chunk.chunk.name),
            metadata=metadata,  # Adding metadata to the node
        )
        nodes.append(text_node)

    return VectorStoreQueryResult(
        nodes=nodes,
        ids=[_extract_chunk_id(chunk.chunk.name) for chunk in relevant_chunks],
        similarities=[chunk.chunk_relevance_score for chunk in relevant_chunks],
    )